If that last post did not satisfy your need for brain food, then let me mention that as of today the Problem of the Week returns. This semester’s theme: Fun With Arithmetic! What’s that? You don’t like arithmetic? Well, let’s see if you’re still saying that at the end of the term.
In general I try to choose problems that are accessible even to people in lower level classes. I go for things with a brainteaser quality to them, as opposed to problems that require knowledge of calculus or something higher. Also, I’m perfectly aware that solutions to just about any brainteaser are readily available online. But what can you do? If a problem is charming and likely to be new to most students, then that is what I care about. The students do not receive any course credit for participating, meaning that the one’s who do are precisely the one’s who tend to enjoy solving things on their own. And, frankly, if they care enough to go looking online, and then to express the answer in their own way, then I’ll take that.
So, be sure to check in every Monday for a new problem.